Lease rod for looms and operating mechanism therefor



A ril 22 1924 1A 9L2ii1 "r. E. OFIESH LEASE ROD FOR LOOMS AND OPERATING MECHANISM THERE ,1?

Filed Feb. 21, 1923 Z) v m 0772 eys.

Patented Apr. 22, 1924.

'omrao STATES PATENT OFFICE.

LEASE ROI) FO'R LOOMS AND OPERATING MECHANISM THEREFOR.

Application filed February 21, 1923. SerialNo. 620,507.

To all whom it may concern:

Be it known that I, THOMAS E. OFIESH, a citizen of the United States, residing at Lawrence, county of Essex, State of Massachusetts. have invented a certain new and useful Improvement in Lease Rods for Looms and Operating Mechanism Therefor,

of which the following is a specification, reference being had therein to the accompanying drawings.

The object of my invention is to providemechanism by which the lease rod of a loom may be moved so that it will perform its function with less injury to the warps; also to provide mechanism which can be applied at a minimum expense to looms not heretofore provided with lease rods.

As is well understood by those skilled in the art, the yarns forming the warp frequently break because of adhesion between adjacent yarns. This adhesion is caused by entanglement and matting of the fibres or by the use of slashing. Breakage of a warp yarn stops the loom and the opera-tor must take the time to retie the warp yarn and start the loom. lrVhere fragile warp yarns, particularly single yarns, are employed the loss of time resulting from this cause is very great, reducing the production of the loom and the wages earned by the operator if the work is done by the piece. I am aware that movable lease rods have previously been employed, but they have usually been positively operated by complicated mechanisms and are of such a character as frequently to injure the yarn and to cause breakage.

The device embodying my invention is of the simplest possible nature and consists primarily in a lease rod resting on the lower set of warps, combined with two side rods parallel with the warps, the front ends of the side rods being secured by an adjustable flexible connection to the lay so that the lease rod slides back and forth between the upper and lower warps.

The device embodying my invention can be applied to old looms not previously provided with lease rods without any change whatever in the loom.

The invention will be fully understood from the following description when taken in connection with the accompanying drawings, and the novel features thereof will be pointed out and clearly defined in the claims at the close of this specification.

In the drawings, Fig.- 1 is a vertical section of the essential portions of the loom equipped with my invention.

Fig. 2 is a similar section on a larger scale, showing the relation of the parts.

Referring now to the drawings, at 11 is shown the beam, at 12 the warps, the upper layer a and the lower layer b forming the shed. At'13 is shown the breast beam, at 14 the hand rail and at 15 the lay sword. The harnesses are shown at 16. The foregoing parts are of the ordinary construction, and except as combined in the manner stated in the claims form no part of my invention.

At 17 is shown the lease rod. In practise I employ a small steel rod, one-quarter to three-eighths of an inch in diameter. This rod rests on the lower layer of warps b and each end of the lease rod 17 is secured to a side rod 18, only one of which is shown in the drawings. The side rod 18 is preferably formed with an eye 0 to engage the lease rod, and the other end is bent into L shape, as shown at d. The front end of each of the side rods passes through holes 19 in leather flaps 20 one of which is shown in the drawings, which are secured to thelay swords 15 or to the lay beam 14. The thumb screw 21, ordinarily employed to secure these two parts together, can be conveniently used to hold the flaps in place. In normal position the flap 20 hangs down and the side rods 18 are in substantially horizontal position, extending from front to back ofthe loom substantially parallel with the shed.

As the lay beam swings back and forth on the lay swords the leather flaps 20 and the side rods 18'pu11 the lease rod yieldingly back and forth between the upper and lower layers of warps of the shed. The several holes 19 in the leather flaps serve to adjust the length of stroke of the lease rod. Thus if the side rods are put, in the two top holes the stroke will be longer than it will be if they are placed in some of the lower holes, this being due to the difference in distance from the pivot of the'lay swords. The length of stroke is varied according to the kind of yarn forming the warps. operation, the lease rod slides back and forth on the warp, keeping always in contact with it and following its surface, and its operating mechanism does not tend to displace the warps from their normal po sition. Old looms can be equipped without change because the leather flaps can be se- In its cured to the lay beam by the thumb screws 21 and the parts put in place Without any change whatever in the loom. It will also be seen that the expense of the parts is practically negligible.

I have found in actual practice that the device embodying my invention not only greatly increases the output of the loom,

' particularly where fragile yarn and heavy slashing is emplo ed, but improves the equality of the clot renderingit smoother.

What I claim is:

1. In a loom, the combination of a lease rod adapted to lie between the two la ers of the shed, a lay beam and a yieldin flexible connection between the lease and the lay beam for moving the lease rod in the direction of the lengt of the warp.

2. In a 100m, the combination of a lease rod adapted to lie between the two layers of the shed, a lay beam, and means for o crating said lease rod including side r0 s substantially parallel with the warps extending from the lease rod to the lay beam, and flexibly connected with one of said parts, said lease rod resting on the lower warps, and the operating means therefor tending to slide it" back and forth thereon without displacing the warps vertically.

3. In a loom the combination of a lease rod adapted to rest on the lower layer of the shed, a lay beam, side rods substantially parallel with the warps extending from the lease rod to the lay beam, and flexible connecting members lying substantially parallel with the back of the lay beam and Se cured at the topof the lay beam and at the bottom to the side rods.

4. In a loom, the combination of a lease rod adapted to lie between the two layers of the shed, a lay beam, side rods secured at one end to the lease red, leather flaps engaging the front ends of the side rods and themselves secured at the top to the lay beam.

5. In a loom, the combination of a lease rod adapted to lie-between the two layers of'the shed, a lay beam secured by thumb screws to the lay swords of the loom, two flexible members secured at their upper ends to said thumb screws, and side rods extending from the lease rod and connecting with said flexible members below the point of connection of said flaps with the lay beams.

6. In a loom, the combination of a lease rod adapted to lie between the two la ers of a shed, a lay beam, side rods exten ing from the lay rod to the lay beam, connecting members connecting the side rods and lay beams, said connecting members being substantially parallel with the lay swords and afi'ording variable points of connection between the side rods and the lay beam with reference to the pivot about which the lay beam swings on the lay swords.

7. In a loom, the combination of a lease rod adapted to lie between the two layers of a shed, a lay beam, thumb screws secur-- ing the lay beam to the lay swords, leather flaps secured at their top ends to the said thu-m'b screws and having a plurality of holes arranged vertically in the said flaps, and side rods extending from the lease rod to the said flaps and having a head in engagement with one of the holes in the said n testimony whereof I allix my signature.

THOMAS E. OFIESH. 

